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FluttershyFluttershy
a fost răspuns

Calculati suma: S=11+22+33+...+22154 VA ROG REPEDE E URGENT!!!!!!!!!!!!!!!

Răspuns :

[tex]\displaystyle 11+22+33+...+22154=11(1+2+3+...+2014)= \\ \\ =11 \times \frac{2014(2014+1)}{2} =11 \times \frac{2014 \times 2015}{2} = \\ \\ =11 \times \frac{4058210}{2} =11 \times 2029105=22320155[/tex]

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